Adding-machine.



2 SHEETS-SHEET l hf@ f -..ii/f

Patented Dec. 3, 1918.

W. P. QUENTELL.

ADDING MACHINE.

APPLICATION FILED SEPT. lo. 1918.

W. P. QUENTELL.

ADDING MACHINE.

APPLICATION FILED sEPT.\o,1918.

Patented Dec. 3, 1918 2 SHEETS-SHEET 2.

31A/venten' afto'nneql .i UNITED sTATEsPATENT onirica.;

WILLIAM 1. QUEN TELL, OF NEW YORK, N. Y.

ennuis-MACHINE.

To all HwmJ it may con cern Be it known that I, VILLIAM P. QUENTELL,

-a citizen of the United States, residing at New York. in `the county of New York and State of New York, have invented ordiscovered certain new and useful Improve-` ments in Adding-Machines. of which the following is a specification, reference being had therein to the accompanying drawings.

This invention. relates to adding machines, and more particularly to the mechanism that measures the distance which the adding parts have to travel to register the value indicated by any particular key which may be operated. the invention having for its object to simplify the mechanism referred to, thereby contributing to simplicity of construction, more particularly of machines of comparatively small size and light weight.

In the accompanying drawings Figure 1 is a vertical section showing certain parts of an adding machine embodying the present invention. Fig. 2 is a plan view of a single bank of keys shown in Fig. 1. Fig. 3 isa detail section on line 3 3 of Fig. 1, looking in the direction of the arrow adjacent said line. and Fig. 4 is a section on line 4-4, Fig. l. looking in the direction of the arrow. Fig'. 5 is a detail plan view of the control bar. Fig. 6 is an enlarged detail view of one of the latches on the key latch bar.

Referring to the drawings, the dotted line A denotes the outline of the left side of the frame of the machine. it being understood that all the mechanism of the machine 'is within the side frames and that the machine will include at its right hand side a frame part corresponding to that denoted by the dotted line A.

Extending transversely of the machine, near the front end of the side frame/parts thereof, is a. slotted bar 12 and further to the rear iS a second transverse bar 13 preferablv L-shaped in cross-section, and the upper flange of which is slotted. these bars, in `connection with other suitable parts, connecting the two side frame parts of the ma# chine.A

Mounted in the transverse bars 12 and 13 is a key supporting .bar 14 formed in cross Specification of Letters Iatent.

.retained in section as shown in Figs. 3 and 4, and having upper and lower Slotted horizontal members 14a and 14b in which the slotted keys lare adapted to slide vertically, each key being raised position by a spring 16 attached to the bar 14 and to the body of the key.` The upward movements of the keys 15 under the influence of the springs 16 are arrested by stop pins 17 on said keys. c

-Resting on the horizontal part 14b of the bar 14 is a sliding latch bar 18 provided with a series 0f latches 19 having inclined faces 2O against which impinge cross parts 15a of the keys 15, so that when one of said keys is depressed said latch bar will be forced forward against the stress of a spring 21, until said cross Vpart 15a has passed by the inclined shoulder 22 at the lower end of the incline 2O on the latch 19, when the said. latch bar 18 will be urged rearward by said spring 21,--so that the hooked portion of the latch19. normally extending through the slot 15b in the body 15 `of the key. will enter the slot 15c in' the body of the said key'and, by engaging the lower wall of said slot 15c will retain said key in its depressed position until released. By providing-the'hooked portions of the latches 19 with the inclined shoulders 22 at the bases of the inclines 20, the latch bar will be forced slightly farther forward than will be necessary to permit said hooked portions of the latches to engage the crossparts 15a.y The latch bar 18 carries a pin 24 which is in contact with the tail 25 of a retaining pawl 26 pivoted on a rivet 27 mounted in the hanger 14c which is preferably formed as part of the bar 14. The pawl 26 is retained in its operative `position by-a spring Patented Dec. 3, 1918. Application filed September l10, 1918. Serial No. 253,398. l

28 connecting said pawl`26 with the ysaid of the machine.l said bar 30 being also steadied and guided'by a bifurcated downturned extension 14d of the bar 14. The

. `the machine tol lift said actuator.

' 38C, moving upward under the influence of the spring 42, will ensliding control bar is provided with a series of stops 302l preferably integral with said bar and staggered on oppositesides thereof, as clearly shown in Fig. 5. Said bar is also provided with a lug 30b connected by a coil spring 33 with an extension 14d of the bar 14, said spring tending to move the said control bar rearward when released. The sliding control bar 30 is normally held m the position shown in Fig. 1 by the pawl 26 which engages one of the stops 30a-on said bar. Said sliding control ,bar 30 is also provided at its rear end sion l30c the upper end of which is normally in' Contact with a rod 34 forming a part Ofa bail which is pivoted on a cross bar 35 and which bail comprises side bars 36 and a bottom bar 37. The rod 34 serves, a stop for `said sliding control bar, be explained later.

Cooperating with the'control bai` 30 1 s an adding wheel actuator 38 which isguided vertically by slotted plates 39, 40, saidy actuator having a slot 38L receiving transverse bars 41 extending from one side frame of to the-other, so thatthe said adding wheel actuator is properly steadied and guided in its vertical movements. A ttached to the bar land to the said adding wheel actuator is acoil as will spring 42 which tends The actuator 38 is provided with an extension 38b having a lug 38 whichV normally rests beneath the eXtension 30c of the control bar 30, but when thel said control bar is released from the pawl 26 and the stoprod 34, and is then free to rbe moved rearwardly by the spring 33, said lug with the said actuator gage one ofthe steps in the saidextension 30C, depending upon which key, has vbeen deressed. l o v l lVhen the pawl 26 has been` released from the control bar 30 by the forward movement of the latch bar 18 the said control bar will still be prevented from -beingmoved rearwardly, b v its spring 33, by the stop rod 34, which the upper end of the extension 30 of said control bar impinges, until the power shaft. 43 is actuated by the o 'erating lever 44. Mounted on said powersiaft is a cani which is engaged by a pin 46 ona 1 bail 47, one member of the said bail 47 hav-` 47,y pin 46 and ingan arm 47a with which is connected a spring 48 tending to hold the bail 47 in its loweredvposition.` The cam 45 and coperati'ng parts, including bail part 47, itsv arm spring 48, herein shown as being at one side ofthe machine, will, in practice. .be duplicated on the other side of the machineto balance the parts and avoid side strain.

l`The cam 45 is provided with a laterally extending lug 45a which is in contact with an with a stepped eXteiiat times, as l y said control bar 30.

numbers registered ,the said ba'r free to move rearward until its movement is arrested b v the engagement of one of the stops 30a against a finger 15c on the key which may have been depressed. This rearward'niovement of the control bar 30 will permit the adding wheel actuator to be lifted a` distancefcorresponding to the value represented by the' particular key which may havej`been depressed. as governed by the steps in the extension 30c of the lVhen the handle 44` is pulled forward and the cams 45 are partially rotated, the Aengagement of the s aid canis with the pins 46 will lift the bail 47 upward and thereby permits the adding wheel actuator 38 to rise, as just stated. rlhe adding wheel actuator is provided with a rack 51 which, at times, engages a gear wheel 52 movable with an adding wheel 53 and which adding wheel is carried by a swinging frame 54 pivoted at 55, the gear wheel 52,being out of mesh with the rack 51 during the upward movements of the said actuator, and the rengagement of the adding wheel actuator gear with said gear wheel 52 being subsequently eifected. as is usual in machines of this kind. Also the mechanism for carrying the decimals from the lower orders to the higher .orders in the adding wheels may be of any suitable or well-known construction and need not therefore be herein shown or described.

'l After the adding operation has been ef.

60 on each latch bar 18, thereby forcing the may have been depressedsaidlatch bars forward a sutlicient distance to release the said latches 19 from the parts 152*Y ofthe keys 15 which may-have beendepressed. As the machine will include a number of-banks of' keys and a corresponding number of latchbars 18,A this movementuof the bail 59 willrelease all the keys which 'may have 'been 'depressed for an -adding opera-tion.

If it be `desired to make a .record of 'the a type-carrier can be eon-` y v in Fig. -1,`where a type bar 61 is shown as being pivoted at 62 to actuator 38, said type bar coperating with laplaten or" printing cylinder 64 in a wellvknown manner.

Attached to the 'under side of the slotted upper part 14*1 thin strip of celluloid or other suitable material bearing numerals 1 to 9 inclusive, and whichmay be seen through openings 14d formed in said part 14,r and the finger pieces 15d of the keys 15 will be of such shape and size as not to seriously obscure said numerals, which, it will be understood, v `indicate the value represented by the respective keys adjacent said numerals.

,s form of kevs shown less space is required for By the the ngers of the operator than would be the caseI if conventional key buttons were attached to the keys. Also by forming the finger pieces 15? integral with the bodies of the keys less expense of manufacture is involved as will. be obvious.

It will of course be understood that the single bank of keys and coperating parts, including the adding wheel and its actuator shown in Figs. l and 2 represent only one `of several such elements or mechanisms, and

that the complete machine will contain as many banks of keys and coperating parts as maybe necessary, according` to the desired capacity 'of theJ machine.

he operation of the machine is asfollows: First, a key is depressed. This moves the latch bar 18 forward andlatches the depressed key, so that, when the linger is taken ofi' the key the latter remains in depressed position. As the latch bar moves forward, it lifts the retaining pawl 26 away from the control bar 3Q. No other parts move until the main shaft 43 44. Second, the lever 44 is pulled forward as far as it is intended to go. During this forward movement of the said lever 44,- the cam nger or lug 45a' moves away from eX- tension or arm 49 and permitsI the spring 50 to rock the bail 36, 37 rearward, thus moving the cross-rod 34 rearward away from the extension 30c ofthe control bar 30, and thereby permitting the said control bar to `move rearward until it is stopped by one ofits lugs or stops 30a striking the finger 15c of the depressed key. Shortly after the control bar has started rearward the cam 45 lifts, through the pins sponse to their springs 42 until their arms 38b strike the desired steps on the extensions 30c of the control bar. These steps represent the values of the keys depressed and therefore the actuators are properly positioned tol give the desired extentv of rotation an extension 63 on theof the key support 14 is a.

. tive position,

is rotated by the lever tor relative lto said l 46, the bail 47 thus 1 permitting the actuators 38 Vto rise in re-v to the'adding wheels inaccordance with the values represented'by theparticular keys depressed. After the l'evr 44 has been moved forward to set the parts for the .adding operation, the gears 52 on the adding wheels 53V will, (by suitable means forming no part of .the present invention) be thrown into mesh l. 1n an adding machine, the combination secure by Letters Patent:

with kevs, of an adding wheel, an actuator for said wheel, a control bar for said actuator and movable independently thereof, a spring for moving said control bar to operative position, a detent for holdingv said con- Itrol bar in non-operative position against the action of said spring, means for disengaging said detent from said control bar, said control bar having stop means, to be engaged directly by said keys, when the latter are operated, to limit movement of said control bar under the infiuence of said spring, and differential stop means, comprising two cooperating parts, one carried by said control bar and the other by said actuator, for limiting the movement of said actuator in one direction.`

2. In an adding machine, the combination with keys, for said wheel, a control bar for said actuator and movable independently thereof, a-

of an adding wheel, an actuator spring for moving said control bar to operaa detent for holding said control bar in non-operative position against the action of saidsspring, means for disengaging said detent from said control bar, said control bar having stop means, to be engaged directly by said keys, when the latter are operated, to limitmovement'of saidv control bar under the influence of said spring, and differential stop means, comprising two cooperating parts, one carried by said control bar and `the other by said actuator, for limiting the movement of said actuator in one direction,and means for moving said actuacontrol bar. 3. In an adding machine or the like, the combination with a series of keys, of separated upper and lower guiding members slotted for the passage of said keys, said upper-member having a series of openings adjacent s'aid keys, and a plate beneath said upper member having characters showing through said openings and indicating nu- ]Ineral values represented by the-respective evs.

4. In an adding machine or the like, the combination with aseries of keys, of separated but connected upper and lower guiding numeral values represented vby the re- Ving members slotted for the passage of said spective keys. keys,said upper members having a series of In testimony whereof .I aiX my signature. openings adjacent said keys, and a plate be- WILLIAM I. QUENTELL.

5 neath said upper member having characters Witness:

showing through said openings and indicat- ROSE M. SEF'roN. 

